Pivotable window sash assembly
AssigneeCSB Enterprises, Inc.
InventorsColin Slocomb, Scott E. Beard
Life of this patent
Estimating the term…
Abstract
A pivotable window sash assembly includes a pivot bar which engages a balance shoe for holding the sash to a master frame. The shoe has a recess in which a locking member is rotatably mounted. The locking member includes an exposed keyway which is selectively aligned with at least one slot in the shoe located at the recess. The pivot bar has an arm which functions as a key for fitting in the keyway and has at least one projection extending outwardly from the arm for fitting in each slot when the slot and keyway are aligned.
Claims20
A pivotable window sash assembly in combination with a tilt window sash and a channeled window frame mounting said tilt window sash to said channeled window frame, said assembly, said window frame having an elongated channel functioning as a track, a balance shoe slidably mounted in said channel for movement therein, a pivot bar mounted to said window sash, said pivot bar being pivotally engaged with said balance shoe to connect said window sash with said balance shoe for joint movement of said window sash and said balance shoe and for selective pivotal movement of said window sash with respect to said balance shoe and said window frame, said balance shoe having a recess, a locking member rotatably mounted in said recess, said locking member having a keyway on surface of said balance shoe disposed toward said pivot bar, at least one slot in said balance shoe located at said recess for being selectively aligned with said keyway, said pivot bar having a body portion which fits in said window sash, an arm extending outwardly from said body portion toward said balance shoe, said arm comprising a key shaped to fit in said keyway, and said arm having a projection extending outwardly therefrom to fit in said slot only when said slot and said keyway are aligned.
A pivot bar used in a pivotable window sash assembly for engagement with a balance shoe mounted in a frame when said pivot bar is mounted to a window sash, said pivot bar comprising a body member for being mounted in said sash, an extension extending peripherally outwardly from said body member along a plurality of sides of said body member to act as a lock for preventing said pivot bar from being inserted completely into said window sash, an arm extending outwardly from said extension in general alignment with said body member, said arm being of generally uniform cross section which is of smaller cross section than the cross section of said body member, said arm terminating in an edge at its end remote from said extension, said arm having first and second surfaces spaced from and parallel to each other, said first and second surfaces being interconnected by spaced and parallel opposite sides, said first and second surfaces and said opposite sides extending from said extension to said edges, a pair of pins mounted to said arm on said opposite sides of said arm and in alignment with each other, and said pins being disposed inwardly of each of said first and said second surfaces and inwardly of said edge.
A balance shoe for use in a pivotable window sash assembly having a frame with a track therein in which said balance shoe would be slidably mounted and having a window sash with a pivot bar mounted to the window sash for pivotal engagement with said balance shoe to connect the window sash and the balance shoe for joint movement therewith, said balance shoe including a housing portion having a pair of sides and an interconnecting wall for being disposed toward the pivot bar, a circular opening in said wall, a locking member rotatably mounted in said circular opening, a keyway extending completely across said locking member at said circular opening, and a pair of slots mounted in diametric alignment with each other in said wall located at said circular opening for selective alignment with said keyway.
Dependencies are inferred from the claim text.